(SELECT (actor.org_unit_descendants(id)).id from actor.org_unit where shortname = :ou_to_del);
DELETE FROM action.hold_request WHERE pickup_lib IN
(SELECT (actor.org_unit_descendants(id)).id from actor.org_unit where shortname = :ou_to_del);
+DELETE FROM action.hold_request WHERE request_lib IN
+(SELECT (actor.org_unit_descendants(id)).id from actor.org_unit where shortname = :ou_to_del);
DELETE FROM action.aged_hold_request WHERE pickup_lib IN
(SELECT (actor.org_unit_descendants(id)).id from actor.org_unit where shortname = :ou_to_del);